ezsp 5.0.0

Ember ZNet Serial Protocol
Documentation 
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//! Parameters for the [`Messaging::send_unicast`](crate::Messaging::send_unicast) command.

use le_stream::{FromLeStream, ToLeStream};
use num_traits::FromPrimitive;

use crate::Error;
use crate::ember::aps::Frame;
use crate::ember::message::Destination;
use crate::ember::{NodeId, Status};
use crate::frame::Parameter;
use crate::frame::responds_with::RespondsWith;
use crate::types::ByteSizedVec;

const ID: u16 = 0x0034;

#[derive(Clone, Debug, Eq, PartialEq, ToLeStream)]
pub(crate) struct Command {
    typ: u8,
    index_or_destination: NodeId,
    aps_frame: Frame,
    tag: u8,
    message: ByteSizedVec<u8>,
}

impl Command {
    #[must_use]
    pub const fn new(
        destination: Destination,
        aps_frame: Frame,
        tag: u8,
        message: ByteSizedVec<u8>,
    ) -> Self {
        Self {
            typ: destination.discriminant(),
            index_or_destination: match destination {
                Destination::Direct(node_id) => node_id,
                Destination::ViaAddressTable(index) | Destination::ViaBinding(index) => index,
            },
            aps_frame,
            tag,
            message,
        }
    }
}

impl Parameter for Command {
    const ID: u16 = ID;
}

impl RespondsWith for Command {
    type Response = Response;
}

/// Response parameters.
#[derive(Clone, Debug, Eq, PartialEq, FromLeStream)]
pub struct Response {
    status: u8,
    sequence: u8,
}

impl Parameter for Response {
    const ID: u16 = ID;
}

/// Converts the response into the sequence number or an appropriate [`Error`] depending on its status.
impl TryFrom<Response> for u8 {
    type Error = Error;

    fn try_from(response: Response) -> Result<Self, Self::Error> {
        match Status::from_u8(response.status).ok_or(response.status) {
            Ok(Status::Success) => Ok(response.sequence),
            other => Err(other.into()),
        }
    }
}